1) Is there a way to remove ‘commercial request’ both from posting ad page and the ad view page?
Currently it is not possible to remove it, but we added it to our to do list and will be available with next release. (planned in next 24 hours)

2) Is there a way to remove photo upload altogether or to limit it to one or two photos?
Yes it is possible by setting “Image uploads per ad” value to 0 (zero) on “Settings” -> “Ads” page in admin panel. If you want to allow only 1 image then set this value to 1. default value is set to 10. We created tutorial explaining image setting.

Added option to remove “commercial request” on version 1.4.2, please update to it first. Then navigate to “Settings” -> “Ads” page from admin panel, at the bottom select Hide “People with other commercial requests can contact me.” field: field and save.